package com.aliyun.ocs.util;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

import org.jboss.netty.util.ThreadNameDeterminer;
import org.jboss.netty.util.ThreadRenamingRunnable;

public class DeamondThreadFactory implements ThreadFactory {
	static final AtomicInteger poolNumber = new AtomicInteger(1);
	final ThreadGroup group;
	final AtomicInteger threadNumber = new AtomicInteger(1);
	final String namePrefix;

	static {
		ThreadRenamingRunnable.setThreadNameDeterminer(new ThreadNameDeterminer() {
			public String determineThreadName(String currentThreadName, String proposedThreadName) throws Exception {
				return currentThreadName;
			}
		});
	}

	public DeamondThreadFactory(String prefix) {
		SecurityManager s = System.getSecurityManager();
		group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
		namePrefix = prefix + "-pool-" + poolNumber.getAndIncrement() + "-ocs-client-core-nio-thread-";
	}

	public Thread newThread(Runnable r) {
		Thread t = new Thread(group, r, namePrefix + threadNumber.getAndIncrement(), 0);
		if (!t.isDaemon())
			t.setDaemon(true);
		if (t.getPriority() != Thread.NORM_PRIORITY)
			t.setPriority(Thread.NORM_PRIORITY);
		return t;
	};
}